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🌊 Stay dry, stay worry-free with Rule 35A – your boat’s silent guardian!
The Rule 35A A-Matic Bilge Pump Float Switch is a mercury-free, corrosion-resistant automatic switch designed for 12V DC bilge pumps. It features a removable base for easy installation and maintenance, ensuring reliable activation of your bilge pump to protect your vessel from water accumulation. Highly rated by over 1,500 users, it’s engineered for dependable performance in all marine conditions.




| ASIN | B000O8DA3M |
| Brand | Rule |
| Colour | One |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,599) |
| Global Trade Identification Number | 00042237095435 |
| Included Components | Rule 35A Rule-A-Matic Float Switch - 12-24 VDC |
| Item Dimensions L x W x H | 8.9L x 12.7W x 21H centimetres |
| Item Type Name | Rule 35A Rule-A-Matic Float Switch - 12-24 VDC |
| Item Weight | 113 g |
| Manufacturer | Rule |
| Material | Plastic |
| Model Number | 35 |
| Part Number | RM500B |
| Power source | Corded Electric |
| Product Style | Bilge Pumps Switches |
| UPC | 696582485641 042237095435 617297076870 666668135845 042237083722 071030261204 773975400198 611104328671 779421381288 042237106230 014445389231 012304410966 826713868894 675904094815 072090742719 826713868900 963041571116 |
| Unit Count | 1.0 count |
| Usage | Boating, Water Treatment, Cruising, Rainy Conditions, Emergencies, Traveling |
| Voltage | 12 Volts (DC) |
K**W
Five Stars
good and effective
J**Y
I bought several from other store before, but there were always some points that disappointed me. but this time, I am very satisfied with this product.
So far so good. So far this has worked great for us Super fast shipping! That is what you have been looking for Good value for price I like this so much,I now have two
C**E
Its good
Although a bit light in weight it does the job well, I attached a magnet to the bottom of it to keep it attached to my steel hull of my narrow boat.., It works well no problems
A**E
Failed after a few months
Had this installed in the sump of my Dory. After a few months found the float had distorted around the hinge, and it stuck in the "on" position flattening the battery. This is the second one I have had to junk. I will look for something different next time.
M**`
The last one did the same so not impressed with the poor quality of this product
Only lasted a few months and then it stuck in the 'on' position. The last one did the same so not impressed with the poor quality of this product.
A**S
Unreliable
For what claims to be a submersible switch, it disappointingly failed after 2 weeks, and when I cut it open to find out why, I found it full of water. Not good if you are relying on it to prevent your boat sinking.
T**L
rubbish
You can get thse on ebay for £8.50. No matter the supplier, they all look identical and clearly all come from the same chinese manufacturer. Most fail within two months. Longest I've had one last is 6 months. As other say, they fill up with water and flatten your battery. Complete junk and unless you want your boat to sink, do not buy.
M**O
Oggetto arrivato rapidamente e corrispondente all'ordine. Trattandosi di una sostituzione di un galleggiante identico, ma non più funzionante, non ho altro da segnalare.
D**L
As superb, quality float switch as is to be expected from Rule.
K**E
ich würde sehr gerne 0 Sterne für diesen Schrott geben, was aber nicht möglich ist. Vorher war 15 Jahre der gleiche Schwimmschalter im Boot. Auch damals hatte die Bodenplatte aufgegeben. Diesmal nach 3 Monaten stand ein bisschen Süsswasser in der Bilge. Die Bodenplatte ist völlig zerfallen. Billiger und Schrottiger kann man so ein Teil nicht konstruieren.
J**A
Funcionamiento y diseño perfecto, precio elevadisimo.
A**R
I have not yet installed it but the switch feels solid clicks so should be reliable, the hinge feels quality, small enough to fit almost everywhere. Vires are marine grade. Would buy again.
Trustpilot
1 month ago
3 weeks ago